The question below refers to the following list of test scor

The question below refers to the following list of test scores
Given the following raw data of test scores:
51, 58, 62, 62, 66, 74, 79, 79, 80, 80, 80, 80, 91, 93, 93, 93
In the above scenario, having a cumulative percent of 50% means that:

50% scored higher than a 74 on the test

50% scored an 80 or below on the test

50% scored at or higher than an 80 on the test

50% scored at or below a 79 on the test

I know the answer is at/below a 79, but I do not know how to work it out.

Solution

There are 16 scores here, so a 50% cumulative percent is at the 8th entry, 79.

[50% of 16 = 8, so 8th entry is what we are looking at]

Thus, as we accumulate from the lowest to highest, then cumulative 50% includes the ones below 79.

OPTION D: 50% scored at or below a 79 on the test.